1Wrap a flexible tape measure around your upper arm
2Measure at the fullest part (mid-bicep)
3Note in inches or centimeters
Size chart
Size
Inches
cm
Standard Armband
8.5″ – 15.5″
21.5 – 39 cm
Extra-Long Armband
12.5″ – 18.5″
31.5 – 47 cm
Both armbands fit most body types. Additional bra extenders can be purchased at any store if larger sizing is required.
What do I need to track cervical mucus?
L
By Liza Blake
Updated February 09, 2025
You don’t need anything fancy to track cervical mucus! All you need is toilet paper, the knowledge of what you’re looking for, and how to distinguish between categories.